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Aqeuous electrolyte composition and sealed-type primary film battery including electrolyte layer formed of the aqueous electrolyte composition

A technology of aqueous electrolyte and electrolyte layer, applied in the direction of non-aqueous electrolyte batteries, batteries with solid electrolytes, aqueous electrolytes, etc., can solve the problems of battery deterioration and failure to work, and achieve the prevention of battery performance deterioration, excellent ion conductivity, Effect of improving high-speed discharge characteristics

Inactive Publication Date: 2008-06-18
ELECTRONICS & TELECOMM RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when stored for a long time, the battery may deteriorate or fail to work

Method used

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  • Aqeuous electrolyte composition and sealed-type primary film battery including electrolyte layer formed of the aqueous electrolyte composition
  • Aqeuous electrolyte composition and sealed-type primary film battery including electrolyte layer formed of the aqueous electrolyte composition
  • Aqeuous electrolyte composition and sealed-type primary film battery including electrolyte layer formed of the aqueous electrolyte composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] A porous polyethylene (PE) film having a thickness of 20 μm was prepared. A plurality of circular through-holes having a diameter of 500 μm were then formed in the porous PE film using a puncher to prepare a separator.

[0045] To prepare the aqueous electrolyte composition, 5% by weight of hydrophilic particulate polyethyleneimine was added to a 6M potassium hydroxide (KOH) solution, and 10% by weight of polyacrylic acid and carboxymethylcellulose (weight ratio 1:1) of the polymer blend was added thereto to prepare a very waxy (very waxy) electrolyte gel. Electrolyte gel is coated on both surfaces of the separator to form an electrolyte layer. At this time, the electrolyte gel coated on the surface of the separator flows in and completely fills the through holes formed in the separator.

[0046] A positive electrode film and a negative electrode film were laminated and hermetically adhered on both surfaces of the resulting structure including the separator and the el...

Embodiment 2

[0048] Except using the polymer blend of polyethylene oxide and polyvinyl alcohol (weight ratio 1:1) instead of the polymer blend of polyacrylic acid and carboxymethyl cellulose, adopt the same method as Example 1 Manufactures sealed primary membrane batteries.

Embodiment 3

[0050] In addition to using woven glass fibers with a thickness of 100 μm as the separator, and using 6M ammonium chloride (NH 4 Cl) solution was used instead of 6M KOH solution to prepare an aqueous electrolyte composition, and the same method as in Example 1 was used to manufacture a sealed primary membrane battery.

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Abstract

The invention provides an aqueous electrolyte compound including hydrophilic particles and a seal one-off film battery including an electrolyte layer made of the aqueous electrolyte compound. The seal one-off film battery is characterized in that an isolator film is arranged between an anode and a cathode and provided with a plurality of through holes. The non-flowing electrolyte layer arranged between the anode and the cathode comprises a first electrolyte layer and a second electrolyte layer extending in parallel to the anode and the cathode, and a plurality of third electrolyte layers filled in the through holes of the isolator film so as to be connected with the first electrolyte layer and the second electrolyte layer. The transference path of ion in the electrolyte layer is shorteneddue to the third electrolyte layers filled in the through holes of the isolator film. The hydrophilic particles are scattered in the electrolyte layer, thereby preventing the moisture from vaporizing.

Description

[0001] Cross references to related patent applications [0002] This application claims Korean Patent Application No. 10-2006-0113483 filed with the Korean Intellectual Property Office on November 16, 2006 and Korean Patent Application No. 10-2007-0024688 filed with the Korean Intellectual Property Office on March 13, 2007 rights and interests, the disclosure of which is incorporated herein by reference in its entirety. technical field [0003] The present invention relates to an electrolyte composition and a sealed primary membrane battery. More specifically, the present invention relates to an aqueous electrolyte composition and a sealed primary membrane battery including an electrolyte layer formed from the aqueous electrolyte composition. This work was supported by the IT R&D Program of MIC / IITA. [2005-S-106-02, Development of Sensor Tag and Sensor Node Technology for RFID / USN] Background technique [0004] Recently, active radio frequency identification (RFID) and se...

Claims

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Application Information

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IPC IPC(8): H01B1/06H01M6/18H01M2/16H01M2/14H01M10/04H01M50/409H01M50/491
CPCY02P70/50H01M6/02H01M6/168H01M6/181H01M2300/0002Y02E60/10
Inventor 李永掎金光万柳光善吕骏浩表喆植
Owner ELECTRONICS & TELECOMM RES INST
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